h a l f b a k e r y
Assume a hemispherical cow.
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Different types of fires require different
solutions. this solution is meant for fires
that produce a lot of smoke and where
time is critical because lives are in
if any of my assumptions in this idea are
wrong, please correct me.
scenario: a house on fire with people
nighttime and people are
smoke starts to get to every room and
people start to cough and become
disoriented. A fire engine arrives and,
realizing that there are people inside and
also that there is a lot of smoke, the fire
crew start up a
device with a large-diameter hose
pointing into the front door (or another
door if the front door is not a good exit
this time) A jet of super-saturated air
blasts out and smoke starts to billow out.
disoriented people, feeling the rush of
cool air and seeing a dissapation in
smoke, can see more, can breathe more,
can move towards the direction of the
air to a save exit point.
question: if the blast of air is very sudden
and it blows out windows, would it be
better for the windows to blow out for
more ventilation or worse because
ears aren't supposed to take the
question: how effective would this "wet"
air be at helping the fire not to grow?
(?) Tactical Ventilation
Modern compartment fire fighting processes [oneoffdave, Nov 08 2006]
||I noticed, in a recent demonstration, that one method to extinguish oil fires is by using an air/water mist. I think it takes the heat away. If the water is already vaporised, then this probably wouldn't work so well.
||There is a device that uses a mix of compressed air and water to knock down and extinguish fires with much less water than normal. A back-pack based system will deal with a car fire. There is also a helicopter mounted version that can be fired through windows. As I can't remember what it's called I can't find the link for it.
||As for breaking or leaving windows, if you read up on tactical ventilation that will answer most of your questions.
||i had never thought of searching "tactical
ventilation" for this idea... i am still
wondering what it means, although i can
||WHAT!! ok. after reading the article on
tactical ventilation, it looks like i'm
trying to open a can of burning worms.
it says that Positive Pressure Ventilation
cause cause all sorts of problems that
could... well, let's just say that fire is
not as behaved as i thought, and there
are way more factors than i should have
||this idea could create more poblems if
anything. for indoor stuff where air
pressure plays a large role. outdoor, it
might be ok.